Title :
Anytime spatially coupled codes for relay channel
Author :
Noor-A-Rahim, Md ; Nguyen, Khoa D. ; Lechner, Gottfried
Author_Institution :
Inst. for Telecommun. Res., Univ. of South Australia, Adelaide, SA, Australia
Abstract :
In this paper, we study linear anytime codes for the half duplex relay channel. We design anytime codes based on spatially coupled repeat-accumulate (SC-RA) codes. Through finite-length analysis and simulation results, we find that anytime SC-RA codes perform better than existing anytime codes. Furthermore, anytime SC-RA codes allow simple encoding compared to existing anytime spatially coupled low-density parity-check (LDPC) codes. Based on SC-RA codes, we design a bilayer anytime structure suitable for relaying networks with the decode-and-forward strategy. Using asymptotic analysis, we show that the proposed code structure achieves desired anytime properties.
Keywords :
linear codes; parity check codes; relay networks (telecommunication); wireless channels; LDPC codes; anytime SC-RA codes; anytime spatially coupled low-density parity-check codes; asymptotic analysis; bilayer anytime structure; decode-and-forward strategy; finite-length analysis; half duplex relay channel; relaying networks; spatially coupled repeat-accumulate codes; Delays; Encoding; Maximum likelihood decoding; Parity check codes; Relays; Reliability;
Conference_Titel :
Communications Theory Workshop (AusCTW), 2014 Australian
Conference_Location :
Sydney, NSW
DOI :
10.1109/AusCTW.2014.6766425
